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Group A Strep Antigen Test, Laboratory Immunoassay

Maryland rates for HCPCS 87430

Checks a throat swab for proteins from group A streptococcus, the bacterium behind strep throat, using an instrument-read laboratory immunoassay. It is the laboratory version of the test rather than the strip read by eye during an office visit. Results generally come back the same day, so a decision about antibiotics need not wait for a culture to grow.

Rates data updated July 2026.

Facilitymedian $85 · 10th–90th $12$1000%20%10th90th$85Professionalmedian $14 · 10th–90th $11$830%10%20%10th90th$14$5.0$10.0$20.0$50.0$100.0

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$16.22
Median
$85.11
Typical High
$100.00
Aetna
Setting
Professional
Modifier
Global
Typical Low
$10.96
Median
$13.80
Typical High
$83.18
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$3.80
Median
$13.49
Typical High
$15.49
Cigna
Setting
Facility
Modifier
Global
Typical Low
$7.94
Median
$10.96
Typical High
$21.88
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8.13
Median
$15.49
Typical High
$40.74
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$19.95
Typical High
$25.12
United
Setting
Facility
Modifier
Global
Typical Low
$7.08
Median
$7.94
Typical High
$14.13
United
Setting
Professional
Modifier
Global
Typical Low
$6.76
Median
$7.94
Typical High
$15.85
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$6.61
Median
$8.32
Typical High
$16.98